1005140131 has 8 divisors (see below), whose sum is σ = 1015441920. Its totient is φ = 994855368.

The previous prime is 1005140119. The next prime is 1005140137. The reversal of 1005140131 is 1310415001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005140131 is a prime.

It is a super-2 number, since 2×1005140131² = 2020613365893394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005140137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138450 + ... + 145528.

It is an arithmetic number, because the mean of its divisors is an integer number (126930240).

Almost surely, 2^1005140131 is an apocalyptic number.

1005140131 is a deficient number, since it is larger than the sum of its proper divisors (10301789).

1005140131 is a wasteful number, since it uses less digits than its factorization.

1005140131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1005140131 is about 31703.9450384333. The cubic root of 1005140131 is about 1001.7104496938.

Adding to 1005140131 its reverse (1310415001), we get a palindrome (2315555132).

The spelling of 1005140131 in words is "one billion, five million, one hundred forty thousand, one hundred thirty-one".